CVE-2023-26735

Name: CVE-2023-26735
Creator: NVD / NIST
Published: 2023-04-26T00:15:09.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.95%

Last modified Jun 17, 2026

CVE-2023-26735 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. blackbox_exporter v0.23.0 was discovered to contain an access control issue in its probe interface. This vulnerability allows attackers to detect intranet ports and services, as well as download resources. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

blackbox_exporter v0.23.0 was discovered to contain an access control issue in its probe interface. This vulnerability allows attackers to detect intranet ports and services, as well as download resources. NOTE: this is disputed by third parties because authentication can be configured.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.95%

56.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Prometheus	Blackbox Exporter	0.23.0

References

http://blackboxexporter.comBroken Link
http://prometheus.comBroken Link
https://github.com/prometheus/blackbox_exporter#tls-and-basic-authenticationProduct
https://github.com/prometheus/blackbox_exporter/issues/1024Issue Tracking
https://github.com/prometheus/blackbox_exporter/issues/1025Issue Tracking
https://github.com/prometheus/blackbox_exporter/issues/1026Issue Tracking
http://blackboxexporter.comBroken Link
http://prometheus.comBroken Link
https://github.com/prometheus/blackbox_exporter#tls-and-basic-authenticationProduct
https://github.com/prometheus/blackbox_exporter/issues/1024Issue Tracking
https://github.com/prometheus/blackbox_exporter/issues/1025Issue Tracking
https://github.com/prometheus/blackbox_exporter/issues/1026Issue Tracking
https://github.com/prometheus/blackbox_exporter#tls-and-basic-authenticationProduct

Timeline

Published: Apr 26, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-26735?

How severe is CVE-2023-26735?

CVE-2023-26735 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2023-26735?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-26735?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST